Improvement in steam-furnace grates



.E. H. JONES.

FURNACE GRATE.

No. 48,286 Patented June 20, 1 865.

UNITED STATES PATENT OFF-10 EDWA'RD'H, JONES, OF WEST ALBANY, NEW YORK.

IMPROVEMENT IN STEAM-FURNACE enA'r-es.

Specification formingpartof LettersPatent No.'48.286, dated June 20, 1,665.

1T0 all whom it may concern.-

Be it known that nnnwmn 1H;- JONES, of

West Albany, county: ofoAlbany, andState of New York, have inventeda new and useful Improvement in the Construction and Arrangement of Boiler-Grates and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexe'd drawings, making a part of this speciti-- cation, in which- Figure 1 is a;verticalcentrifljseetion of the fire-box ofa locomotive-boiler, exhibiting the ,grates, together with the levers designed to operate them, in sets, and also the position of the oxygen-distributors. Fig. 2 is a horizontal plan of the same. v y

A The object-of this invention is to secure thorough combustion of theooal by the arrangement of the inclined surfaces of the grates toward the flues, inconnection with two or more oxygen distributers placed at suitable distances from eachother and between and parallel with the grates, the coal'being first placed near-the furnace-door for the purpose of coking it first,.and then of being gradually agitated toward the fines through the agency of the parallel rocking grates, whioh purpose, together with greater strength in the grate and less liability to breakage from expansion or' contraction of the metal, is also accomplished, by making the grates of a single casting with the'barserossing each other diagonally, the

saidgrates being operated in sets of two or more. g V

A, Fig. 1, represents the portion of a boiler called the fire-boafl-into which are placed, at

right angles thereto, the-"pivoted grates B B, haying their upper surfaces inclined or depressed from a horizontal line toward the fluesa a. The grates B B are single castings with the bars'crossing each other diagonally, and

are opened, closed, or given a rocking motion independently, in sets oftwo ormore, by means of the levers 0-0, worked-either separately ort-oget-h'er, the levers being connected with the grates by the a'r'utsF F, the rocking motion thus given working the vcoal gradually toward the fluesa a. Between and parallel to each set of grates I place the oxygen-distributors D D, which areintended, by means of the per- 7 forations therein, to furnish a greater supply of oxygen to the-flame than can be furnished by ordinary methods, and thus reproduce a more thorough combustion of the coal in its downward passage from the furnace-door;

Having thus described my invention, what I claim as new, and desire to secure hyLet ters Patent, i'sa 1; A series of grates when cast in the form herein described, audoperated insets of two or more.

2. In combination with the action, of the grates independently by means of the levers 0 (J andthe HIIHS'F F, the useofthe oxygen-- distributersD D, substantially as shown, for

the purpose of producing more perfect combustion.

1 EDWARD H. JONES. Witnesses:

I. W. Laurence,

ALFRED HARLEY. 

